ME(w/o STI)-116
Timing Chain Assembly
MECHANICAL
15.Timing Chain Assembly
A: REMOVAL
1. TIMING CHAIN RH
NOTE:
When replacing a single part, perform the work with the engine assembly installed to body.
1) Remove the chain cover. <Ref. to ME(w/o STI)-93, REMOVAL, Chain Cover.>
2) Using ST and by turning the crankshaft, align the alignment marks of crank sprocket, intake cam sprocket
RH and exhaust cam sprocket RH to the positions as shown in the figure.
NOTE:
If the alignment marks are aligned to the positions as shown in the figure, the crankshaft key is located at six
o’clock position.
ST 18252AA000 CRANKSHAFT SOCKET
ME-07945
10
ST
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ME(w/o STI)-117
Timing Chain Assembly
MECHANICAL
3) Push down the chain lever tensioner RH, and with a 2.5 mm (0.98 in) dia. stopper pin or a 2.5 mm (0.98
in) dia. hex wrench inserted into the stopper pin hole in the chain tensioner RH, secure the plunger (A).
4) Remove the chain tensioner RH, and remove the chain tensioner lever RH (A).
(A)
ME-07946
ME-07947
(A)
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ME(w/o STI)-118
Timing Chain Assembly
MECHANICAL
5) Remove the chain guide RH, and remove the timing chain RH (A).
CAUTION:
• If the timing chain RH is not installed, the intake camshaft RH and exhaust camshaft RH are kept
at zero-lift position. All cams on the camshaft are not pressing down the roller rocker arm (intake
valve and exhaust valve). (Under this condition, all valves remain unlifted.)
• Intake camshaft RH and exhaust camshaft RH can be independently rotated with the timing chain
RH removed. When the intake valve and exhaust valve lift at the same time, the valve heads contact
each other and valve stem may bend. Do not turn it to the outside of range of zero-lift (in range where
it can be turned lightly by hand).
NOTE:
To avoid mixing with LH side, keep the removed part in order.
6) Remove the chain guide RH from the front camshaft cap RH.
ME-07948
(A)
ME-07949
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ME(w/o STI)-119
Timing Chain Assembly
MECHANICAL
2. TIMING CHAIN LH
1) Remove the timing chain RH. <Ref. to ME(w/o STI)-116, TIMING CHAIN RH, REMOVAL, Timing Chain
Assembly.>
2) Using ST and by turning the crankshaft, align the alignment marks of crankshaft key, intake cam sprocket
LH and exhaust cam sprocket LH to the positions as shown in the figure.
ST 18252AA000 CRANKSHAFT SOCKET
3) Push up the chain tensioner lever LH as shown in the figure, and with a stopper pin measuring 1.3 mm
(0.05 in) dia. or less (clips, etc.), or with a hex wrench measuring 1.3 mm (0.05 in) dia. inserted into the stop-
per pin hole in the chain tensioner LH, secure the plunger (A).
ME-07950
ST
25
25
ME-07951
(A)
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ME(w/o STI)-120
Timing Chain Assembly
MECHANICAL
4) Remove the chain tensioner LH, and remove the chain tensioner lever LH (A).
5) Remove the O-ring from the cylinder block LH.
ME-07952
(A)
ME-07953
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ME(w/o STI)-121
Timing Chain Assembly
MECHANICAL
6) Remove the chain guide LH, and remove the timing chain LH (A).
CAUTION:
• If the timing chain LH is not installed, the exhaust camshaft LH is kept at zero-lift position. All cams
on the exhaust camshaft LH are not pressing down the roller rocker arm (exhaust valve). (Under this
condition, exhaust valves remain unlifted.)
• Intake camshaft LH is kept at lift position. All cams on the intake camshaft LH are pressing down
the roller rocker arm (intake valve). (Under this condition, intake valves remain lifted.)
• Intake camshaft LH and exhaust camshaft RH can be independently rotated with the timing chain
LH removed. When the exhaust camshaft LH is turned, the valve heads contact each other and valve
stem may bend as described in above. Do not turn the exhaust camshaft LH to the outside of range
of zero-lift (in range where it can be turned lightly by hand).
• #1 piston and #4 piston are located near TDC. If the intake camshaft LH is turned, the valve and the
piston may contact and valve stem may bend. Do not turn the intake camshaft LH at this time.
NOTE:
To avoid mixing with RH side, keep the removed part in order.
ME-07954
(A)
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ME(w/o STI)-122
Timing Chain Assembly
MECHANICAL
7) Using ST and by turning the crankshaft approximately 200° clockwise, align the alignment marks of crank
sprocket to the positions as shown in the figure.
CAUTION:
• This procedure is required to prevent the valve and piston contacting with each other, by moving
the all pistons to the middle of the cylinders.
• Never turn counterclockwise because the valve and piston may contact. Counterclockwise turn is
allowed only when adjusting precisely the alignment marks, after turning the crank sprocket align-
ment mark clockwise near the position as shown in the figure.
ST 18252AA000 CRANKSHAFT SOCKET
8) Using ST and by turning the intake cam sprocket LH approximately 130° clockwise, align the alignment
marks of intake cam sprocket LH to the positions (zero-lift position) as shown in the figure.
CAUTION:
• After this work, when the intake valve and exhaust valve lift at the same time, the valve heads con-
tact each other and valve stem may bend. Do not turn the intake camshaft LH and exhaust camshaft
LH to the outside of range of zero-lift (in range where it can be turned lightly by hand).
• Perform the operation carefully since the ST comes off easily.
ME-07955
10
ST
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ME(w/o STI)-123
Timing Chain Assembly
MECHANICAL
NOTE:
Intake camshaft LH has three peaks of drive sections for the high-pressure fuel pump. Therefore, there is lit-
tle range where it can be turned lightly by hand in zero-lift position.
ST1 18355AA000 PULLEY WRENCH
ST2 18334AA020 PULLEY WRENCH PIN SET
9) Remove the chain guide LH from the front camshaft cap LH.
ME-07956
ST1
ST2
ME-07957
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ME(w/o STI)-124
Timing Chain Assembly
MECHANICAL
B: INSTALLATION
1. TIMING CHAIN LH
NOTE:
• Be careful that the foreign matter is not into or onto the assembled component during installation.
• Apply engine oil to all component parts of the timing chain.
1) Install the chain guide LH to the front camshaft cap LH.
Tightening torque:
6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
2) Prepare to attach the chain tensioner LH.
(1) Move the link plate (A) in the direction of arrow to press in the plunger (B).
ME-07957
ME-05182
(A)
(B)
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ME(w/o STI)-125
Timing Chain Assembly
MECHANICAL
(2) With a stopper pin measuring 1.3 mm (0.05 in) dia. or less (clips, etc.) or a hex wrench measuring 1.3
mm (0.05 in) dia. inserted into the stopper pin hole, secure the plunger.
NOTE:
If the stopper pin hole on the link plate and the stopper pin hole on the chain tensioner are not aligned, check
that the first notch of plunger rack (A) is engaged with the stopper tooth (B). If not engaged, retract the plung-
er a little so that the first notch of plunger rack (A) is engaged with the stopper tooth (B).
3) Check that the crank sprocket is located at the position shown in the figure. If not aligned, using ST turn
the crankshaft to align the crank sprocket alignment mark to the position shown in the figure.
NOTE:
This procedure is required to prevent the valve and piston contacting with each other in the next step.
ST 18252AA000 CRANKSHAFT SOCKET
ME-06914
(A)
(B)
ME-07962
10
ST
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ME(w/o STI)-126
Timing Chain Assembly
MECHANICAL
4) Using ST and by turning the intake cam sprocket LH, align the alignment marks to the positions as shown
in the figure.
CAUTION:
• When the intake valve and exhaust valve lift at the same time, the valve heads contact each other
and valve stem may bend. Do not turn the exhaust camshaft LH.
• Perform the operation carefully since the ST comes off easily.
ST1 18355AA000 PULLEY WRENCH
ST2 18334AA020 PULLEY WRENCH PIN SET
ME-07963
ST1
ST2
25
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ME(w/o STI)-127
Timing Chain Assembly
MECHANICAL
5) Using ST and by turning the crankshaft approximately 130° counterclockwise, align the alignment marks
of crankshaft key to the positions as shown in the figure.
CAUTION:
Never turn clockwise because the valve and piston may contact. Clockwise turn is allowed only when
adjusting the key position precisely, after turning the crankshaft counterclockwise to bring the key
near the position as shown in the figure.
ST 18252AA000 CRANKSHAFT SOCKET
6) Align the alignment mark of exhaust cam sprocket LH to the position shown in the figure.
CAUTION:
To prevent valve damage, turn the exhaust cam sprocket LH only within the range of zero-lift (in
range where it can be turned lightly by hand).
ME-07964
ST
ME-07965
25
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ME(w/o STI)-128
Timing Chain Assembly
MECHANICAL
7) Install the timing chain LH and the timing chain guide LH.
(1) Match the timing chain mark (blue) to the alignment mark of the crank sprocket.
(2) Match the timing chain mark (pink) to the timing mark position of the intake cam sprocket LH.
(3) Match the timing chain mark (pink) to the timing mark position of the exhaust cam sprocket LH.
(4) Install timing chain guide LH.
Tightening torque:
6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
(A) Alignment mark (C) Blue (D) Pink
(B) Timing mark
ME-07966
(A)
(C)
(D)
(B)
(D)
(B)
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ME(w/o STI)-129
Timing Chain Assembly
MECHANICAL
8) Install O-rings to the cylinder block LH.
NOTE:
Use new O-rings.
9) Install the chain tensioner lever LH (A) and chain tensioner LH.
Tightening torque:
6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
ME-07953
ME-07952
(A)
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ME(w/o STI)-130
Timing Chain Assembly
MECHANICAL
10) Pull out the stopper pin from the chain tensioner LH.
CAUTION:
Confirm the following before pulling out the stopper pin.
• Matching of the timing chain mark (blue) to the alignment mark of the crank sprocket.
• Matching of the timing chain mark (pink) to the timing mark position of the intake cam sprocket LH.
• Matching of the timing chain mark (pink) to the timing mark position of the exhaust cam sprocket
LH.
NOTE:
If the stopper pin cannot be removed, lift the chain tension lever LH to remove as shown in the figure.
ME-07967
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ME(w/o STI)-131
Timing Chain Assembly
MECHANICAL
11) Using the ST, turn the crankshaft clockwise, and make sure that there are no abnormal conditions.
CAUTION:
Always make sure to perform this confirmation.
ST 18252AA000 CRANKSHAFT SOCKET
(A) Alignment mark (C) Blue (D) Pink
(B) Timing mark
ME-07968
(A)
(C)
(D)
(B)
(D)
(B)
ME-07969
ST
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ME(w/o STI)-132
Timing Chain Assembly
MECHANICAL
12) Using ST and by turning the crankshaft, align the alignment marks of crank sprocket, intake cam sprocket
LH and exhaust cam sprocket LH to the positions as shown in the figure.
NOTE:
If the alignment marks are aligned to the positions as shown in the figure, the crankshaft key is located at six
o’clock position.
ST 18252AA000 CRANKSHAFT SOCKET
13) Install the timing chain RH. <Ref. to ME(w/o STI)-133, TIMING CHAIN RH, INSTALLATION, Timing
Chain Assembly.>
ME-07970
10
ST
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ME(w/o STI)-133
Timing Chain Assembly
MECHANICAL
2. TIMING CHAIN RH
NOTE:
• Be careful that the foreign matter is not into or onto the assembled component during installation.
• Apply engine oil to all component parts of the timing chain.
1) Install timing chain LH. <Ref. to ME(w/o STI)-124, TIMING CHAIN LH, INSTALLATION, Timing Chain As-
sembly.>
2) Install the chain guide RH to the front camshaft cap RH.
Tightening torque:
6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
3) Prepare to attach the chain tensioner RH.
(1) Move the link plate (A) in the direction of arrow to press in the plunger (B).
ME-07949
ME-05170
(A)
(B)
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ME(w/o STI)-134
Timing Chain Assembly
MECHANICAL
(2) With a 2.5 mm (0.98 in) dia. stopper pin or a 2.5 mm (0.98 in) (nominal) dia. hex wrench inserted into
the stopper pin hole, secure the plunger.
NOTE:
If the stopper pin hole on the link plate and the stopper pin hole on the chain tensioner are not aligned, check
that the first notch of plunger rack (A) is engaged with the stopper tooth (B). If not engaged, retract the plung-
er a little so that the first notch of plunger rack (A) is engaged with the stopper tooth (B).
4) Make sure that the alignment marks of the crank sprocket, intake cam sprocket LH and exhaust cam
sprocket LH are aligned to the positions as shown in the figure.
ME-05171
(A)
(B)
ME-07971
10
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ME(w/o STI)-135
Timing Chain Assembly
MECHANICAL
5) Align the alignment marks of intake cam sprocket RH and exhaust cam sprocket RH to the positions as
shown in the figure.
CAUTION:
To prevent valve damage, turn the intake cam sprocket RH and exhaust cam sprocket RH only within
the range of zero-lift (in range where it can be turned lightly by hand).
ME-07972
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ME(w/o STI)-136
Timing Chain Assembly
MECHANICAL
6) Install the timing chain RH and the timing chain guide RH.
(1) Match the timing chain mark (blue) to the alignment mark of the crank sprocket.
(2) Match the timing chain mark (pink) to the timing mark position of the intake cam sprocket RH.
(3) Match the timing chain mark (pink) to the timing mark position of the exhaust cam sprocket RH.
(4) Install the timing chain guide RH.
Tightening torque:
6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
(A) Alignment mark (C) Blue (D) Pink
(B) Timing mark
ME-07973
(A)
(C)
(B)
(D)
(B)
(D)
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ME(w/o STI)-137
Timing Chain Assembly
MECHANICAL
7) Install the chain tensioner lever RH (A) and chain tensioner RH.
Tightening torque:
6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
ME-07947
(A)
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ME(w/o STI)-138
Timing Chain Assembly
MECHANICAL
8) Pull out the stopper pin from the chain tensioner RH.
CAUTION:
Confirm the following before pulling out the stopper pin.
• Matching of the timing chain mark (blue) to the alignment mark of the crank sprocket.
• Matching of the timing chain mark (pink) to the timing mark position of the intake cam sprocket RH.
• Matching of the timing chain mark (pink) to the timing mark position of the exhaust cam sprocket
RH.
(A) Alignment mark (C) Blue (D) Pink
(B) Timing mark
ME-07974
(A)
(C)
(B)
(D)
(B)
(D)
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ME(w/o STI)-139
Timing Chain Assembly
MECHANICAL
9) Make sure that the alignment marks of the cam sprocket and crank sprocket are aligned to the positions
as shown in the figure.
10) Using the ST, turn the crankshaft clockwise, and make sure that there are no abnormal conditions.
CAUTION:
Always make sure to perform this confirmation.
ST 18252AA000 CRANKSHAFT SOCKET
11) Install the chain cover. <Ref. to ME(w/o STI)-101, INSTALLATION, Chain Cover.>
ME-07975
10
ME-07976
ST
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ME(w/o STI)-140
Timing Chain Assembly
MECHANICAL
C: INSPECTION
1) Check the timing chain, chain guide, chain tensioner lever and chain tensioner for deformation, cracks or
other damages.
2) Check the chain guide and chain tensioner lever for abnormal wear.
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